EP 2534887 A1 20121219 - WIRELESS SOUND TRANSMISSION SYSTEM AND METHOD USING IMPROVED FREQUENCY HOPPING AND POWER SAVING MODE
Title (en)
WIRELESS SOUND TRANSMISSION SYSTEM AND METHOD USING IMPROVED FREQUENCY HOPPING AND POWER SAVING MODE
Title (de)
DRAHTLOSES TONÜBERTRAGUNGSSYSTEM UND VERFAHREN MIT VERBESSERTEM FREQUENZSPRUNG- UND STROMSPARMODUS
Title (fr)
SYSTÈME ET PROCÉDÉ DE TRANSMISSION DU SON PAR ONDES RADIOÉLECTRIQUES UTILISANT UN MODE DE SAUT DE FRÉQUENCE ET D'ÉCONOMIE D'ÉNERGIE AMÉLIORÉ
Publication
Application
Priority
EP 2010051814 W 20100212
Abstract (en)
[origin: WO2011098141A1] Wireless packet transmission system using TDMA and frequency hopping provides sound to a hearing aid device. The hearing aid device passively synchronises to the transmitting audio source unit by listening to the beacon packet that comprises information for hopping sequence synchronisation and for listening to audio and beacon packets. The hearing aid wakes up periodically to listen to the beacon packet. In the unsynchronised phase, the sleep period (or beacon listening period) differs from the beacon transmission period by a certain percentage to allow for final successful reception of the beacon packet. Once the beacon packet has been successfully received, the hearing aid switches into a synchronised mode whereby the reception unit of the hearing aid follows and uses the frequency hopping sequence and timing of the transmission unit.
IPC 8 full level
H04W 48/16 (2009.01); H04R 25/00 (2006.01); H04W 52/02 (2009.01); H04W 84/18 (2009.01)
CPC (source: EP US)
H04W 48/16 (2013.01 - EP US); H04R 25/554 (2013.01 - EP US); H04W 52/0229 (2013.01 - EP US); H04W 84/18 (2013.01 - EP US); Y02D 30/70 (2020.08 - EP US)
Citation (search report)
See references of WO 2011098141A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
DOCDB simple family (publication)
WO 2011098141 A1 20110818; EP 2534887 A1 20121219; US 2012310395 A1 20121206
DOCDB simple family (application)
EP 2010051814 W 20100212; EP 10706572 A 20100212; US 201013577972 A 20100212